Mathematics, 09.12.2021 03:10 7obadiah

The mean of a test is 400 and the standard deviation is 75. It is normally distributed. An inter-decile range is similar to the inter-quartile range. Whereas the inter-quartile range is the range of the mid 50%, the inter-decile range is the range of the mid 80% of the distribution. What is the inter-decile range for the test

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The mean of a test is 400 and the standard deviation is 75. It is normally distributed. An inter-dec...

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